Cart
Article
Determination of Sugar Content in Commercial Beverages by Density: A Novel Experiment for General Chemistry Courses
Hi-Res PDFPurchase the full-text
- PDF/HTML,
figures/images,
references and tables,
(where available)
Abstract
A laboratory experiment based on the determination of density, suitable for introductory-level chemistry courses, is described. Students prepare several aqueous solutions of sugar of known concentration in the 0-15% by mass range. The density of each solution and of commercial beverage samples is measured by weighing a known volume of solution delivered by a volumetric pipet. A graph of density versus sugar concentration is prepared and used to determine the percent by mass of sugar in the beverage samples. The experiment provides students an opportunity to develop skills in weighing, preparing solutions, pipetting, constructing and using a calibration curve, and proper use of significant figures. The materials used in the experiment are inexpensive, do not pose physical or health hazards, and do not result in the production of hazardous waste. The nature of the samples and the purpose of the experiment stimulate students' interest.
Keywords (Audience):
Elementary / Middle School ScienceKeywords (Domain):
Laboratory InstructionKeywords (Pedagogy):
Hands-On Learning / ManipulativesKeywords (Subject):
CarbohydratesCiting Articles
Citation data is made available by participants in CrossRef's Cited-by Linking service. For a more comprehensive list of citations to this article, users are encouraged to perform a search in SciFinder.
This article has been cited by 6 ACS Journal articles (5 most recent appear below).
Using Soda Cans To Teach Physical Science Students about Density
Mark M. LaPorte , Michael J. Sanger and Teari C. HumphreysJournal of Chemical Education2009 86 (2), 209Using Soda Cans To Teach Physical Science Students about Density
Mark M. LaPorte , Michael J. Sanger and Teari C. HumphreysJournal of Chemical Education2009 86 (2), 209In this experiment, physical science students measured the mass of several soda cans, measured the mass and volume of water displaced when these cans were placed in water, and determined whether these cans sank or floated in water. Then, the students ...
Chemical Speciation Analysis of Sports Drinks by Acid–Base Titrimetry and Ion Chromatography: A Challenging Beverage Formulation Project
Howard DrossmanJournal of Chemical Education2007 84 (1), 124Chemical Speciation Analysis of Sports Drinks by Acid–Base Titrimetry and Ion Chromatography: A Challenging Beverage Formulation Project
Howard DrossmanJournal of Chemical Education2007 84 (1), 124This article describes a three-part laboratory project that integrates a full chemical speciation analysis for use in undergraduate analytical chemistry classes. Laboratory analyses include base standardization, potentiometric or colorimetric titration, ...
Density Determination by Water Displacement and Flotation: An Introductory Experiment in Forensic Chemistry
Lisa A. Saccocio and Mary K. CarrollJournal of Chemical Education2006 83 (8), 1187Density Determination by Water Displacement and Flotation: An Introductory Experiment in Forensic Chemistry
Lisa A. Saccocio and Mary K. CarrollJournal of Chemical Education2006 83 (8), 1187An introductory lab experiment has been developed for a nonscience major course in forensic chemistry, designed to introduce students to basic chemical principles within the context of interesting problem-solving scenarios. Students explore two different ...
Popping Popcorn Kernels: Expanding Relevance with Linear Thinking
Jordan L. Fantini , Michael M. Fuson and Thomas A. EvansJournal of Chemical Education2006 83 (3), 414Popping Popcorn Kernels: Expanding Relevance with Linear Thinking
Jordan L. Fantini , Michael M. Fuson and Thomas A. EvansJournal of Chemical Education2006 83 (3), 414Graphing skills and an understanding of linear relationships are developed in the context of popping of individual popcorn kernels. Introductory-level chemistry students determine mass changes as the result of popping along with the volume and density of ...
The Science Teacher: Summer 1999
Steve LongJournal of Chemical Education1999 76 (7), 882The Science Teacher: Summer 1999
Steve LongJournal of Chemical Education1999 76 (7), 882Classroom activities, pedagogy, TIMSS, and multicultural issues- these are a few of the topics addressed in recent issues of The Science Teacher (TST). Included in this review are selected articles of possible interest to this Journal's chemistry ...
Tools
-
Add to Favorites
-
Download Citation
-
Email a Colleague -
Permalink
Order Reprints
Rights & Permissions
Citation Alerts
History
- Received: August 03, 2009
ACS
Network
Facebook
Tweet This
CiteULike
Newsvine
Digg This
Delicious
